How long does it take for diet to impact blood work?

Hi all! I have been paleo for 26 days (yay!) and am due for a doctors appointment soon. I've always had normal blood work, though I'm curious to see how paleo has impacted my results. My slightly disjointed question is:

Is it too soon to note a difference? Will my blood work reflect the past month, will it reflect the past few months (non-paleo included), or will it reflect the last few days?

On a side note, I am hoping it's more of the last few weeks as I recently became acquainted with coconut butter and managed to polish off half a jar in one sitting. I don't plan on doing that regularly but I don't want that to shake up my blood work either.

Got some blood work done 5-6 months after going full paleo, and it was ok. "Good" by the doctor's standards, but I wanted to see something better.

If you want to collect some good data, I'd see if you can get blood drawn every six months. One of my friends who has a cholesterol problem had her doctor request that her levels be tested every six months. Although, if you just tell your doctor how much sat fat you eat, he'll probably be drawing blood the next day.

Not sure this will help but I had just started the paleo diet and been diong it about 10 days when I got a A1C (to test for pre-diabetes). It was totally normal. I only mention this in that I am very overweight and lived off junkfood and sugar prior to going on that diet. So the fact that it was a good number and I believe tests for insulin levels based on a few months was a good sign. It really made me want to learn more and stick to this plan. Since I had no prior tests and can't compare of course but still I think it's good :)

I can tell you that I went Paleo on August 1 and by November 15 my bloodwork was unbelievably good. My blood lipids weren't great to start off with but, even though yours were good to begin with, I still think you will see an improvement, specifically in: increased HDL, lowered Triglycerides, lower fasting glucose.

I got a blood test literally 14 days after starting to eat this way (after switching from eating as a vegan for 4 years). Everything tested ---- LDL, HDL and Triglycerides ---- had changed in a huge way.

My readings had been pretty consistent in the preceding 4 years, and the only change was in what I was eating, so I'm confident it was the reason my HDL nearly doubled and my triclycerides were almost a third of what they had been and my LDL rose something like 75%.